I give it a try:
Normally organic carbon becomes available via balanced feeding, decay and autotrophic growth
As vinegar supports metabolism, I suspect it will lower alkalinity.
As only organic carbon is added on a daily base (evaporation) without taking into account the availability of nutrients I suspect essential nutrients may be depleted, certainly in a tank using a skimmer.
As fast growth uses ammonia I suspect the installed autotrophic carrying capacity is reduced.
If a fast growth rate can not be maintained due to limited availability of one or more essential nutrients the C:N ratio may increase and the total carrying capacity needed may not be supported any more as part of the autotrophic carrying capacity was removed previously.
If the C/N ratio increases this may mess up the entire tank when nutrients become available, in particular the coral holobiont. This may provoke bleaching, even kill corals.
Just a few things coming up in my mind, probably there is a lot more if the quantity of vinegar added only depends on the evaporation rate.